Market Share
~30% IC substrates
Key Product
FC-BGA substrates for AI accelerators
Bottleneck Status
🔴 Capacity constrained through 2026
Full briefing▼ Expand
Ibiden is the world's leading supplier of FC-BGA (flip chip ball grid array) substrates — the high-density circuit boards that connect advanced chips to server motherboards. For AI accelerators like NVIDIA's H100 and H200, IC substrates are a critical chokepoint: without Ibiden's advanced substrates, GPU servers cannot be assembled. The company holds approximately 30% of the global IC substrate market and has been running at full capacity with an 18-24 month backlog. NVIDIA is believed to hold priority allocation agreements with Ibiden. The substrate shortage has been one of the binding constraints on AI GPU supply in 2023–2025, making Ibiden one of the less-visible but most consequential bottlenecks in the AI supply chain.